National Instruments cDAQ-9133 - Page 9

NI cDAQ-9132/9133/9134/9135/9136/9137 User Manual
© National Instruments | ix
Counter Timing Signals.................................................................................................... 5-32
Counter n Source Signal ........................................................................................... 5-33
Routing a Signal to Counter n Source .............................................................. 5-33
Routing Counter n Source to an Output Terminal............................................ 5-34
Counter n Gate Signal............................................................................................... 5-34
Routing a Signal to Counter n Gate.................................................................. 5-34
Routing Counter n Gate to an Output Terminal ............................................... 5-34
Counter n Aux Signal ............................................................................................... 5-34
Routing a Signal to Counter n Aux .................................................................. 5-35
Counter n A, Counter n B, and Counter n Z Signals ................................................ 5-35
Routing Signals to A, B, and Z Counter Inputs................................................ 5-35
Routing Counter n Z Signal to an Output Terminal ......................................... 5-35
Counter n Up_Down Signal ..................................................................................... 5-35
Counter n HW Arm Signal ....................................................................................... 5-35
Routing Signals to Counter n HW Arm Input .................................................. 5-36
Counter n Sample Clock Signal................................................................................ 5-36
Using an Internal Source .................................................................................. 5-36
Using an External Source ................................................................................. 5-37
Routing Counter n Sample Clock to an Output Terminal ................................ 5-37
Counter n Internal Output and Counter n TC Signals .............................................. 5-37
Routing Counter n Internal Output to an Output Terminal .............................. 5-37
Frequency Output Signal .......................................................................................... 5-37
Routing Frequency Output to a Terminal......................................................... 5-37
Default Counter/Timer Routing........................................................................................ 5-37
Counter Triggering ........................................................................................................... 5-38
Other Counter Features.........................................
............................................................ 5-38
Cascading Counters .................................................................................................. 5-38
Prescaling.................................................................................................................. 5-39
Synchronization Modes ............................................................................................ 5-39
80 MHz Source Mode....................................................................................... 5-39
External or Internal Source Less than 20 MHz ................................................ 5-40
Chapter 6
Digital Routing and Clock Generation
Digital Routing ................................................................................................................. 6-1
Clock Routing................................................................................................................... 6-1
80 MHz Timebase .................................................................................................... 6-2
20 MHz Timebase .................................................................................................... 6-2
100 kHz Timebase .................................................................................................... 6-2